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Finding the Fourth Proportional to 658,082.70, 987,124.05 and 583,287.30

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Solution

The fourth proportional to 658,082.70, 987,124.05 and 583,287.30 is: 874,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,082.70 : 987,124.05 = 583,287.30 : x
  2. Step 2: Convert to fraction form
    658,082.70/987,124.05 = 583,287.30/x
  3. Step 3: Cross multiply
    658,082.70x = 987,124.05 × 583,287.30
  4. Step 4: Simplify right side
    658,082.70x = 575,776,921,889.57
  5. Step 5: Solve for x
    x = 575,776,921,889.57/658,082.70
  6. Step 6: Final answer
    x = 874,930.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.